SLLU359A december 2022 – may 2023
The MCT8329EVM includes a variety of user-selectable jumpers, switches, and resistors on the entirety of the evaluation board to configure settings. Table 4-2 summarizes all of these configurable settings.
Designator | Setting Name | Description | Layer | Position | Function |
---|---|---|---|---|---|
J8 | 3V3_SEL | Select 3.3 V for MCU power | Top | J8 = 3V3EXT | External |
J8 = 3V3COM | From FTDI (30 mA) | ||||
J6 | 5V_SEL | Select 5 V for FTDI power | Top | J6 = 5V_EXT | External |
J6 = 5V_USB | From USB power (500 mA) | ||||
J13 | SPEED_SEL | Selects SPEED input source | Top | J13 = EXT | External EXT_SPEED test point |
J13 = POT | From Potentiometer R47. | ||||
J13 = INT_PWM |
From internal PWM. PWM Duty cycle can be varied by rotating the POT R47. | ||||
J9 | MSP to MCx Shunt jumper bridge | Connects signals from MCU and user switches to MCT8329 when jumpers are inserted | Top | DRVOFF_SW | DRVOFF |
DIR_SW | DIR | ||||
BRAKE_SW | BRAKE | ||||
SPEED_WAKE | SPEED/WAKE | ||||
MSP_POCI/SCL | SCL | ||||
MSP_PICO/SDA | SDA | ||||
MSP_CLK | NC | ||||
MSP_STE | NC | ||||
DAC/SPEED | DAC/SPEED | ||||
MSP_A2 | NC | ||||
MSP_A1 | GCTRL | ||||
NC | NC | ||||
MSP_nFAULT | nFAULT | ||||
MSP_FGOUT | FGOUT | ||||
NC | NC | ||||
GND |
GND | ||||
J12 | VREG_SEL | Selects VREG power supply | Top | Left position | VREG powered by AVDD |
Middle position | VREG powered externally. | ||||
Right position | VREG powered by MOSFET Q7 | ||||
J1 | AVDD LED | Connects AVDD LED to 3.3 V pull up. | Top | Connected | D1 lights up when AVDD is turned ON. |
J2 | nFAULT LED | Connects nFAULT LED to 3.3 V pull up. | Top | Connected | D2 lights up when
nFAULT is Pulled low. |
J3 | PVDD LED | Connects PVDD LED to 3.3 V pull up. | Top | Connected | D3 lights up when voltage is applied to PVDD. |
S1 | BRAKE | Turns on all low-side MOSFETs | Top | Bottom | Brake enabled |
Top | Brake disabled | ||||
S2 | DRVOFF | Disables gate drivers | Top | Bottom | MCT8329 disabled |
Top | MCT8329 enabled | ||||
S3 | DIR | Controls direction of motor rotation. | Top | Bottom | ABC |
Top | ACB | ||||
S4 | SPEED/WAKE |
Pulls SPEED/WAKE pin to AVDD and GND |
Top | Bottom | SPEED/WAKE pin pulled to AVDD. |
Top | SPEED/WAKE pin pulled to GND. | ||||
SW1 | N/A | Configure SPEED/WAKE pin to SPEED mode and DACOUT/SOx/SPEED_ANA pin | Top | Left | Configure SPEED/WAKE pin to SPEED mode and DACOUT/SOx/SPEED_ANA pin to DACOUT mode. |
Right | Configure SPEED/WAKE pin to WAKE mode and DACOUT/SOx/SPEED_ANA pin to SPEED_ANA mode. |